1.3- Dichloro-2-propanone

Diamino-2,4,6-trinitrobenzene 5-Carboxy-l,3-diamino-2,4,6-trinitrobenzene 1,1- Dichloro-2-propanone, 1,1 -Dichloro acetone 5,7-Dintiro-5,7-diaza-l,3-dioxabicyclooctane-2-one Diazodinitrophenol... 

Bromo-l,3-dichloro-2-propanone, B-10044 3-Bromo-1,1 -dichloro-2-propanone, B-10045 3-Bromo-4,5-diethoxybenzaldehyde, in... 

Similar products have been characterized as mutagenic following the chlorination of humic acids as a possible model for drinking water mutagens (33). These include compounds such as 3,3-dichloropropenal, dichloroacetonitrile, and l,l-dichloro-2-propanone (34). To date, however, for humic acids, only a small fraction of the mutagenesis obtained following chlorination has been accounted for by the identified compounds (33). Chian et al. (35) presented an analysis of the chemical products of humic acid chlorination in relation to those contained in residues of chlorinated water from a surface source. 

Dichloro-l,2,3-dithiazolylium chloride (128) is attacked at the most electrophilic carbon atom by O-, S- and A-nucleophiles to yield the products (129) (80GEP2848221). The chlorodithiazolone (77) can be hydrolyzed to the dione (122) using aqueous propanone (71CB2732). 

SYNS sym-DICHLOROACETONE a,a -DICHLOROACETONE a.y-DICHLOROACETONE 1,3-DICHLOROACETONE 1,3-DICHLOROACETONE pOT) l,3-DICHLORO-2-PROPANONE... 

Condensation of selenazadienes (l.Oequiv) with a-haloketones (l.Oequiv) gives 5-acyl-2-amino-l,3-selenazoles 9 under reflux conditions (Equation 14). Reactions of selenazadienes (2.0equiv) with l,3-dichloro-2-propanone in the presence of triethylamine (3.6equiv) gave the corresponding bis(2-amino-5-selenazolyl) ketones 74 at 50 °C (Equation 15) <2006831, 1998T2545>. 

Irradiation of 2,2,4,4-tetramethylcyclobutane-I,3-dione in pentane, cyclohexane or dichloro-methane resulted in rapid evolution of carbon monoxide (0 = 0.30) and formation of 2,2,3,3-tetramethylcyclopropanone (1). The reaction was easily monitored by infrared spectroscopy, the photolysis was terminated when the characteristic carbonyl doublet of the cyclo-propanone (1823 and 1843 cm ) reached a constant intensity (10-20% conversion of cyclo-butane-1,3-dione). 

In a similar way, acetals of a,a -dichloro ketones were reduced electrolytically to form cyclo-propanone acetals. ... 

Dichloro-l, 3-dideoxyglyceritol (glycerol dichlorohydrin LXII) was therefore prepared from glyceritol (VII), and oxidized to 1,3-dichloro-2-propanone (LXIII) which, upon addition of hydrogen cyanide and hydrolysis of the resulting nitrile (LXIV), gave a quantitative yield of 3-chloro-2-(chloromethyl)-2-hydroxypropanoic acid (LXV). This chloro acid (LXV)... 

The direct alkylation of hydrogenphosphonic diesters with a diazoketone has been recorded alongside that with diazoalkanoic esters, and explored particularly with methyl 2-diazo-3-oxobutanoate but also for several chloroacetones. Reactions involving 1-chloro-3-diazo-2-propanone are effectively catalysed by [Cu(acac)2], but more heavily chlorinated substrates suffer stepwise dechlorination. Thus l,l,l-trichloro-3-diazo-propan-2-one initially yields the expected dialkyl (3,3,3-trichloro-2-oxopropyl)phospho-nate, but under the experimental conditions, dechlorination then proceeds to give the dialkyl (3,3-dichloro-2-oxopropyl)phosphonate only the monochloroketone undergoes a reaction in which the original halogen content is retained in the final product ... 

D,L-Fluorophenylalanine DL-3-(p-Fluorophenyl) alanine DL-4-Fluorophenylalanine DL-p-Fluorophenylalanine p-Fluoro-D,L-phenylalanine. See 4-Fluoro-DL-phenylalanine 2-Fluoro-phenylamine. See 2-Fluoroaniline 4-Fluoro-phenylamine. See 4-Fluoroaniline 4-Fluorophenyl bromide p-Fluorophenyl bromide. See 1-Bromo-4-fluorobenzene N-p-Fluorophenyl-2,3-dichloromaleimide. See 2,3-Dichloro-N-4-fluorophenylmaleimide 1-(4-Fluorophenyl)-2-methyl-2-morpholino-1-propanone CAS 209127-01-5 Uses Photoinitiator for coatings Trade Name Synonyms Greatcure 907F [Hunan Xinyu http //www.hunanxlnyu.com]... 

Selective acylation occurs at C-6 of methyl e<-D-glucopyranoside on treatment with hexachloro- or pentachloro-propanone to yield tri-chloro- or dichloro-acetates respectively. The chlorinated ester group is easily removed by ammonia in ether and thus constitutes a base-labile complement to the acid-labile trityl function (Scheme 3). Trifluoroacetylation of carbohydrates for g.c. analysis has... 

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